131313020 has 24 divisors (see below), whose sum is σ = 276055584. Its totient is φ = 52468416.

The previous prime is 131313001. The next prime is 131313031. The reversal of 131313020 is 20313131.

It is a junction number, because it is equal to n+sod(n) for n = 131312986 and 131313004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18857 + ... + 24863.

It is an arithmetic number, because the mean of its divisors is an integer number (11502316).

Almost surely, 2^131313020 is an apocalyptic number.

131313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131313020 is an abundant number, since it is smaller than the sum of its proper divisors (144742564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131313020 is a wasteful number, since it uses less digits than its factorization.

131313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7109 (or 7107 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131313020 is about 11459.1893256024. The cubic root of 131313020 is about 508.2795029145.

Adding to 131313020 its reverse (20313131), we get a palindrome (151626151).

The spelling of 131313020 in words is "one hundred thirty-one million, three hundred thirteen thousand, twenty".